Mathematics

Mathematics, 30.01.2020 08:48, 125712

4x + 5x + 12 = -6 (given)
9x + 12 = -6 (simplify)
9x = -18 (subtraction)
x = -2 (addition)

which reason is incorrect?
a) addition
b) given
c) simplify
d) subtraction

answer

Answers: 3

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4x + 5x + 12 = -6 (given)
9x + 12 = -6 (simplify)
9x = -18 (subtraction)
x = -2 (a...

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